people: D. Hedden

David Hedden

Mr. David Hedden is a senior research associate at the University of Tennessee Knoxville. After seven years in the US Navy as an electronic technician he earned a BA in Philosopy an an MS in Applied Mathematics from Appalachian State University.

Mr. Hedden supports members of the group in design and fabrication of instruments used in experiments and as prototypes. His current focus is on compact methods of measuring microcantilever stress. His past experience has been with scanning probe microscopy, alpha particle detection and analysis, and optical methods for blood oxymetry.

List of Publications

F. Tian, K. M. Hansen, D. L. Hedden, D. C. Hansen, T. L. Ferrell and T.Thundat, "Discerning Biomolecular Interactions for High throughput Applications using Dynamic Microcantilever Sensors", PNAS, 2003, submitted.

F. Tian, J. H. Pei, D. L. Hedden, G. M. Brown and T. Thundat, "Observation of the surface stress induced in microcantilevers by electrochemical redox processes", Ultramicroscopy, 2004, accepted.

L. A. Pinnaduwage, A. Gehl, D. L. Hedden, G. Muralidharan, T. Thundat, R. T. Lareau, T. Sulchek, L. Manning, B. Rogers, M. Jones, J. D. Adams, “A Microsensor for Toluene Vapour”, Nature 425 , 474 (2003).

L. A. Pinnaduwage, T. Thundat, J. E. Hawk, D. L. Hedden, P. F. Britt, E. J. Houser, D. Bubb, S. Stepnowski, R. A. McGill, "Detection of 2,4 Dinitrotoluene Using Microcantilever Sensors”, Sensors and Actuators B (in press, 2004).

L. A. Pinnaduwage, T. Thundat, A. Gehl, S. D. Wilson, D. L. Hedden, R. T. Lareau, "Desorption Characteristics of Uncoated Silicon Microcantilevers for Explosive and Common Nonexplosive Vapors", Ultramicroscopy (in press, 2004).

L. A. Pinnaduwage, A. Wig, D. Hedden, A. Gehl, D. Yi, T. Thundat, R. T. Lareau, "Detection of Trinitrotoluene via Deflagration on a Microcantilever", Journal of Applied Physics (in press, 2004).